Add CommandProtect capabilities

Add Region.getProtectYLevel

BauSystem_Main/src/de/steamwar/bausystem/commands/CommandProtect.java

@@ -23,18 +23,26 @@ import de.steamwar.bausystem.BauSystem;
 import de.steamwar.bausystem.Permission;
 import de.steamwar.bausystem.world.Welt;
 import de.steamwar.bausystem.world.regions.Region;
+import de.steamwar.bausystem.world.regions.RegionExtensionType;
+import de.steamwar.bausystem.world.regions.RegionType;
 import de.steamwar.command.SWCommand;
 import de.steamwar.sql.Schematic;
 import org.bukkit.Bukkit;
 import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.entity.EntityExplodeEvent;
 
 import java.io.IOException;
 import java.util.logging.Level;
 
-public class CommandProtect extends SWCommand {
+public class CommandProtect extends SWCommand implements Listener {
 
     public CommandProtect() {
         super("protect");
+        if (Region.buildAreaEnabled()) {
+            Bukkit.getPluginManager().registerEvents(this, BauSystem.getPlugin());
+        }
     }
 
     @Register(help = true)
@@ -105,4 +113,18 @@ public class CommandProtect extends SWCommand {
         }
         return region;
     }
+
+    @EventHandler
+    public void onExplode(EntityExplodeEvent event) {
+        event.blockList().removeIf(block -> {
+            Region region = Region.getRegion(block.getLocation());
+            if (!region.isProtect()) {
+                return false;
+            }
+            if (!region.hasProtection()) {
+                return false;
+            }
+            return block.getY() < region.getProtectYLevel();
+        });
+    }
 }

BauSystem_Main/src/de/steamwar/bausystem/world/regions/Region.java

@@ -326,6 +326,10 @@ public class Region {
         undosessions.push(prototype.protect(this, schem));
     }
 
+    public int getProtectYLevel() {
+        return getMinPoint(RegionType.TESTBLOCK, RegionExtensionType.NORMAL).getY();
+    }
+
     public boolean hasExtensionArea(RegionType regionType) {
         switch (regionType) {
             case BUILD: